Observation monitoring well manhole cover
Latest Universal Valve Company, Inc. Patents:
Description
FIG. 1 is a perspective view of an observation monitoring manhole cover showing my new design;
FIG. 2 is a top plan view;
FIG. 3 is a bottom plan view;
FIG. 4 is a front elevational view;
FIG. 5 is a rear elevational view; and
FIG. 6 is a right side elevational view, the left side being a mirror image thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
1282732 | October 1918 | Brickford |
607 | 1896 | GBX |
423434 | January 1935 | GBX |
- Signs Giving Definite Instructions Publication, p. 45, Children col. Item #347. Signs Giving Definite Instructions Publication, p. 41, Stop and Give Way col. Item #124.
Patent History
Patent number: D309024
Type: Grant
Filed: Mar 1, 1988
Date of Patent: Jul 3, 1990
Assignee: Universal Valve Company, Inc. (Elizabeth, NJ)
Inventor: Martin C. Pettesch (Roselle, NJ)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Law Firm: Steele, Gould & Fried
Application Number: 7/162,583
Type: Grant
Filed: Mar 1, 1988
Date of Patent: Jul 3, 1990
Assignee: Universal Valve Company, Inc. (Elizabeth, NJ)
Inventor: Martin C. Pettesch (Roselle, NJ)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Law Firm: Steele, Gould & Fried
Application Number: 7/162,583
Classifications
Current U.S. Class:
Underground Service Vault (4) (D25/36)